Improve the formatting of find-symbol.clj
Improve the formatting of find-symbol.clj

- Tidy up the formatting of find-symbol/node->var

- Use :refer :as instead of :all

- Improve formatting of find-invokes

- Improve formatting of contains-const?

- Improve formatting of find-symbol-in-ast

- Improve formatting on find-symbol-in-file
  - use nil-punning instead of when-not + empty?
  - move the long anonymous fn to the let

- Improve formatting on find-global-symbol

- Refactor find-local-symbol and find-symbol-in-file

- Format find-symbol

- Mapcat is more idiomatic than flatten

- Inline fn-invoked into fns-invoked?
  - Use `contains?` to be more explicit about operating on a set

- Add doc-string to node->var

- Add doc-string to fns-invoked?

- Add doc-string for find-nodes

- Better be explicit about using set as a predicate

- Inline contains-var

- Format find-invokes for better readability
  - Also invoke the set instead of using set? for the fear of breaking
    something.

- Add doc-string for contains-var?

msgodf/refactor-nrepl,clumsyjedi/refactor-nrepl,Peeja/refactor-nrepl,grammati/refactor-nrepl,msgodf/refactor-nrepl,luxbock/refactor-nrepl,Peeja/refactor-nrepl,clojure-emacs/refactor-nrepl,grammati/refactor-nrepl,duncanmortimer/refactor-nrepl,clumsyjedi/refactor-nrepl,luxbock/refactor-nrepl,duncanmortimer/refactor-nrepl,clojure-emacs/refactor-nrepl